Oral waterjet



FIG. 1 is a perspective view of an oral waterjet showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines illustrate portions of the oral waterjet that form no part of the claimed design. 

CLAIM The ornamental design for an oral waterjet, as shown and described. 